Waterproofing composition



Patented June 19, 1934 UNITED STATES WATERPROOFING COMPOSITION John Francis Florich and Vincent Paul Florich, Ventnor, N. J assignors to Auto Comfort Products Company, Vcntnor, N. J a. partnership of New Jersey No Drawing. Application June 6, 1932,

Serial No. 615,763

3 Claims.

This invention relates to a composition which, when applied to metallic surfaces such as electrical conductors, connections, and other portions of an electric circuit, will render the same waterproof.

One object of the invention is to provide a waterproofing composition in the form of amixture applicable to electrical conductors to afford complete insulation thereof from water, in a more satisfactory manner than has heretofore been possible and which, at the same time, is easy to apply and economical to use.

Another object of the invention is to provide a waterproofing composition as set forth of such a nature as will remain in an unchanged state or condition when applied to an electrical conductor.

Another object of the invention is to provide a waterproofing composition as stated, of such nature as will not accumulate dust and dirt, though exposed to the surrounding atmosphere.

A more specific object of the invention is to provide a waterproofing composition as set forth of such a nature that will not become dry and harden and become cracked and/or peel from the conductor to destroy the insulation rendered the conductor against moisture.

Other objects of the invention will be apparent from a consideration of the specification and claims.

Heretofore, various attempts have been made to provide compositions for rendering electrical connections and conductors impervious to the penetration of moisture and other deteriorating liquids. The connection to be waterproofed has been smeared with grease or oil which, after a reasonable length of time, becomes gummy and are particularly undesirable because they have an inherent characteristic to accumulate dust and dirt from the surrounding air. Grease and oils so used to insulate electrical circuits are destroyed in relatively short time by heat generated in the conductor by the current passing therethrough, which destroys the insulation afforded and necessitates frequent recoating to provide complete insulation against moisture. On the other hand, the rendering of electric conductors and connections impervious to moisture has been attempted by the application of varnishes and lacquers which, though applied in a substantially liquid state, become dry and harden, resulting in the cracking and peeling of the coating from the conductor, destroying the insulating eflect thereof.

Our invention contemplates a waterproofing composition which is in the form of a mixture applicable in a liquid state, and when once applied to a conductor or connection for the purpose of rendering it impervious to moisture, remains in the state in which it is applied. This by the generation of heat from the current passing through the conductor, and is of a greaseless nature which eliminates the. tendency in substances of the present character to accumulate dust and dirt from the surrounding air. By re- -maining in the liquid state Without change, the composition will not crack and peel from.-1the surface to which it is applied, and will effectively insulate that part from contact with moisture.

The. invention contemplates the application of a mixture of mineral and non-mineral oil to the conductor surface. The non-mineral oil may be of either a vegetable or animal oil, and for example, neats foot oil has been proved satisfactory with a mixture of mineral oil. The mineral oil may be of any one of the different classes, but it is desirable to use a mineral oil which is relatively heavy, having a high specific gravity.

The composition is prepared by thoroughlymixing the mineral and non-mineral oil. The ratio of the non-mineral oil to the mineral oil may vary Widely in the composition but prefererably it is used in the ratio of 1 to 4 parts of nonmineral to 20 parts of mineral oil. Relatively small portions of amyl acetate and ethyl acetate are added to the mixture, the former to better preserve the composition in its original liquid state and the latter to increase the water resisting qualities of the composition. The presence of 390 an inert coloring matter in the product is especially advantageous for commercial purposes and the successful marketing thereof. A formula which has proved to be satisfactory is as follows:

Per cent Neats foot oil 5. Mineral oil 93.

Amyl acetate 0.5 Ethyl acetate 0.5 Coloring matter 1.

Per cent Mineral oil '70. Neats foot oil 25. Amyl acetate 2. Ethyl acetate 2. Coloring matter 1.

In the application of the composition to surfaces for rendering them moisture impervious, a particular feature of the invention is the applicability of the composition to the surface to be 120 insulated without the usual necessity for cleaning the surface prior to the application thereof. Furthermore, the composition may be applied to surfaces already moist and effectively prevent any shorting of the electric circuit by reason of thepresent in the following percentage; mineral oil more than 60%; amyl acetate less than 2%; ethyl acetate less than 2 the balance being non-mineral oil, said non-mineral oil being present in the approximate proportion of at least one to four parts thereof to twenty parts of said mineral oil. 2. A waterproofing composition for coating conductors of electricity, comprising a mixture of mineraland non-mineral oil, the mineral oil having a high specific gravity of a percentage in the mixture considerably in excess of the non-mineral oil, the ingredients being present in the following percentages; mineral oil more than 60%; amyl acetate more than A of 1%; ethyl acetate more than of 1%; the balance being non-mineral oil, said non-mineral oil being present in the approximate proportion of at least one to four parts thereof to twenty parts of said mineral oil. 3. A waterproofing composition for coating conductors of electricity, comprising a mixture of mineral and non-mineral oil, the mineral oil having a high specific gravity of a percentage in the mixture considerably in excess of thenonmineral oil, the ingredients being present in the following percentages; mineral oil more than 60%; amyl acetate more than of 1%; ethyl acetate more than of 1% coloring matter at least 1%; the balance being non-mineral oil, said non-mineral oil being present in the approximate proportion of at least one to four parts thereof to twenty parts of said mineral oil.

JOI-IN FRANCIS FLORICH. VINCENT PAUL FLORICH. 

